Answer: 1.38 km/h
Explanation: Mass divided by Force
Las placas de un capacitor de placas paralelas están en forma horizontal. En el espacio se coloca una losa de material dieléctrico con que llena la mitad inferior del espacio entre las placas. ¿Cuál es la nueva capacitancia resultante
You have a 100 ohm resistor. How
much resistance must you add in
parallel to the 100 ohm resistor to
create an equivalent resistance of
75.0 ohms?
Answer:
R2 = 300 Ohms
Explanation:
Let the two resistors be R1 and R2 respectively.
RT is the total equivalent resistance.
Given the following data;
R1 = 100 Ohms
RT = 75 Ohms
To find R2;
Mathematically, the total equivalent resistance of resistors connected in parallel is given by the formula;
[tex] RT = \frac {R1*R2}{R1 + R2} [/tex]
Substituting into the formula, we have;
[tex] 75 = \frac {100*R2}{100 + R2} [/tex]
Cross-multiplying, we have;
75 * (100 + R2) = 100R2
7500 + 75R2 = 100R2
7500 = 100R2 - 75R2
7500 = 25R2
R2 = 7500/25
R2 = 300 Ohms
Type the correct answer in the box. Spell all words correctly. Complete the sentence using the correct term. A ______enforces federal and state laws related to environmental and natural resources. Reset Next reserved.
Answer:
Environmental Protection Agency (EPA)
Explanation:
In the United States of America, the agency which was established by US Congress and saddled with the responsibility of overseeing all aspects of pollution, environmental clean up, pesticide use, contamination, natural resources and hazardous waste spills is the Environmental Protection Agency (EPA). Also, EPA research solutions, policy development, and enforcement of regulations through the resource Conservation and Recovery Act.
The Environmental Protection Agency (EPA) is the governmental agency set up to ensure that various industries, factories and people comply with laws and regulations concerning the environment i.e it is an agency established to oversee and enforce environmental compliance by the people.
Hence, the Environmental Protection Agency (EPA) is saddled with the responsibility of enforcing federal and state laws related to environmental and natural resources.
Which energy conversion correctly shows the law of conservation of energy?
A. Chemical energy kinetic energy + heat energy
44,000J 12,000J 32,000J
B. Potential energy electrical energy + heat energy
100,00J 40,000J 500,000J
C. Nuclear energy light energy + heat energy
90,000J 27,000J 113,000J
Answer: A
the answer is a
Answer:the answer is a according to diverse exponential formula i got it right on my test
Explanation:
Fill in the blank: Friction applies to all states of matter in the gas state it is called ________ resistance and in a liquid it's called ___________ resistance. Air resistance can be used to slow the fall of an object. Parachutes are usually made out of light, strong fabric, originally silk, now most commonly nylon. They are typically dome-shaped, but vary, with rectangles, inverted domes, and others found
Answer:
Drag; water.
Explanation:
Friction can be defined as a force that resists the relative motion of two objects when there surface comes in contact. Thus, it prevents two surface from easily sliding over or slipping across one another. Also, friction usually reduces the efficiency and mechanical advantage of machines but can be reduced through lubrication.
Generally, there are four (4) main types of friction and these includes;
I. Static friction.
II. Rolling friction.
III. Sliding friction.
IV. Fluid friction.
Fluid friction can be defined as a type of friction that acts on physical objects moving through a liquid or gas. A fluid refers to any physical substance that can flow and is able to take the shape of a container.
In science, matter can be defined as anything that has mass and occupies space. Any physical object that is found on earth is typically composed of matter. Matter are known to be made up of atoms and as a result has the property of existing in states.
Basically, matter exists in three (3) distinct or classical phases and these are; solid, liquid and gas.
Generally, friction applies to all states of matter; in the gaseous state, it is called drag resistance and in a liquid it's called water resistance.
how can the buildup of electrostatic charge be prevented
Answer:
please give me brainlist and follow
Explanation:
Touching a nonconductor like a wooden door before you touch the metal doorknob can help reduce the shock, but the best way for prevention is to drain off all your charges by directly touching the conductor with something in between you and the grounding item.
PLEASE ASAP ILL GIVE BRAINLIEST.
Answer:
The answer is number 2 :)
Answer:
A
Explanation:
yeah physics
Accerelation is the same of everything, regardless of mass. The only thing that affects is aerodynamics of the thing
Do you think the mass of an object greatly affects the coefficient of friction?
Answer:
no it doesn't
Explanation:
Kicks and throws are examples of
A. friction
B. force
C. both friction and force
B.
force is the example of kicks and throws
An electromagnetic wave has a frequency of 4.0 x 10^18 Hz. What is the wavelength of the wave?
Answer:
7.5 × 10^-11 m
Explanation:
Hope this helps !
Consider a day in the physics lab room with room temperature of 20 0C and pressure of 1.0 atm. A container of 3.5 L is left open to the air for a long time. The container is then sealed and place on a Bunsen burner until its temperature reaches 95 0C. It is then open. How many moles of air escape?
Answer:
The number of moles of air that escape is approximately 0.027 moles
Explanation:
The room temperature, T₁ = 20 °C = 298.15 K
Atmospheric pressure, P₁ = 1.0 atm
The volume of the container, V₁ = 3.5 L
The final temperature of the air in the container after heating on the Bunsen burner, T₂ = 95 °C = 368.15 K
The container opened finally
The ideal gas equation is P·V = n·R·T
∴ n = P·V/(R·T)
Where;
R = The universal gas constant = 0.08205 L·atm/(mol·K)
Therefore, we get;
n₁ = 1.0 × 3.5/(0.08205 × 298.15) ≈ 0.143
The number of moles, n₁ ≈ 0.143 moles
When the gas is heated to 95 °C, the number of moles becomes
n₂ = P₂·V₂/(R·T₂)
P₂ = 1.0 atm atmospheric pressure, V₂ = 3.5 L, the volume of the container, T₂ =
∴ n₂ = 1.0 × 3.5/(0.08205 × 368.15) ≈ 0.116
The number of moles of air remaining in the container, n₂ ≈ 0.116 moles
The number of moles of air that escape, n = n₁ - n₂
∴ n = 0.143 - 0.116 = 0.027
The number of moles of air that escape, n ≈ 0.027 moles
what is wheel and axle?
Answer:
Wheel and axle consists of two coaxial cylinders of different diameters. Various examples of wheel and axle are used in our daily life. Some examples of such wheel and axles are string-roller, screwdriver, MADANI, ROTE PING, spanners, knobs of a door, steering of vehicles etc. Most of them are used for magnifying effort but some are also used to gain speed like MADANI and ROTE PING. In wheel and axles, usually effort is applied on big cylinder called wheel and is overcome bya small cylinder called axle.
Answer:
Explanation: The wheel and axle
a machine consisting of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other.
can someone help please and thank you:)
Answer:
infrared will do but I'm not sure this question is hard if I may say and we cannot take green because it is the colour that the concept must have
9) An object with a height of 18 cm is placed in front of a converging lens. The image has a
height of –9.0 cm.
a) What is the magnification of the lens?
b) If the focal length of the lens is 6.0 cm, how far in front of the lens is the object?
c) Where does the image appear?
Answer:
Explanation:
a) Magnification = image height / object height = -9 / 18 = -0.5
b) Magnification = - image distance / object distance = -0.5
so image distance = 0.5 object distance
1/focal length = 1/image distance + 1/object distance
1/6 = 1/(0.5 object distance) + 1/object distance
object distance = 18.0 cm
c) Image appears behind the lens.
Answer:
Explanation:
mag = ht i/ht o = -9/18 = -1/2
mag = -1/2 = -di/do
do = 2di
put in eqn
1/f = 1/di + 1/do
1/6 = 1/di + 1/2di
2di = 18
do = 18cm
image is behind lens
Why does the static electricity in an object not constantly shock us?
Answer:Static electricity is the result of an imbalance between negative and positive charges in an object. These charges can build up on the surface of an object until they find a way to be released or discharged.
Explanation:
hope this helped D:
(PLEASE HELP !! )Does the chemical equation follow the Law of Conservation Of Matter?
A. No
B. Yes
Please explain to.
Answer: No
The Law of Conservation infers that the matter within a system will perserve its quantity (less there's an outside factor which disrupts the system). There should be more Cl within the products side of the equation, and more Br within the reactants side (there should be general adjustment to make this problem balanced), so that the matter is equal in quantity within both sides of the equation.
(Will give brainliest)
What best corresponds to the amplitude of a pendulum swing?
a.) mass
b.) length
c.) gravity
d.) release angle
Answer:
b.) Length
Explanation:
The length of the string can be changed by removing it from the slotted bracket and placing it back in. You can change the mass by varying the number of washers on the mass hanger. The amplitude can be changed by varying the starting angle of the pendulum (low, medium, and high angle). sorry if wrong
The application of a force that causes an object to move in the direction of the force is ______.
Power
Work
Kinetic energy
Distance
Answer:
work is the answer because work is said to be done if an object is displaced by the application of force
What best describes an impulse acting on an object?
the net force on an object divided by the time of impact
the velocity of an object divided by its mass
the product of an object's mass and the time of force impact
the product of an object's mass and its change in velocity
it
Answer:
D
Explanation:
What is acceleration?
Answer:
Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
Explanation:
plz mark me as a brainlest
does a parallel circuit with 2 resistors have more resistance than a series circuit with 2 resistors
That depends on the values of the resistors.
If the same two resistors are used in both cases, then the total resistance is more in series and less in parallel.
Here's a catchy little factoid for ya:
-- In series, the total resistance is more than the biggest single one.
-- In parallel, the total resistance is less than the smallest single one.
Highway safety engineers want to design roadside barriers that will crumple
in the event that a car drives off the road and collides with them, slowing
down the car more gradually. The average person has a mass of 68 kg and
travels on a highway at a velocity of 27 m/s. If the engineers know that the
maximum force that a person can safely withstand is 2180 N, approximately
how much time is required to crumple the barrier to safely slow the person
with this force?
Answer:
[tex]0.84\:\text{s}[/tex]
Explanation:
The impulse-momentum theorem states that the impulse on an object ([tex]F\Delta t[/tex]) is equal to the change in momentum of that object ([tex]\Delta p[/tex]).
Set up the following equation:
[tex]F\Delta t=\Delta p[/tex]
Solving for change in momentum:
The momentum of an object is equal to [tex]p=mv[/tex], where [tex]m[/tex] is the mass of the object and [tex]v[/tex] is the velocity of the object. Since the person's final velocity will be zero, their final momentum will also be zero. Therefore, the person's change in momentum is [tex]68\cdot 27-0=1836\:\text{kgm/s}[/tex].
Solving for time:
[tex]2180\cdot\Delta t = 1836,\\\Delta t =\frac{1836}{2180},\\\Delta t =\boxed{0.84\:\text{s}}[/tex]
Answer:
If the engineers know that the
If the engineers know that themaximum force that a person can safely withstand is 2180 N, approximately, 0.84 second is required to crumple the barrier to safely slow the person
is required to crumple the barrier to safely slow the personwith this force.
Plisssss you can help me pliss
PLEASE ANSWER THIS ASAP THIS IS A SCIENCE QUESTION NO LINKS
Answer:
I believe the answer would be kinetic energy to thermal energy.
Explanation:
Thermal energy is the heat of the brakes, and the kinetic energy would be when the car is in motion before stopping.
what is her mass pls help
Answer:
B
Explanation:
could sum1 explain this for 17 points please?
Answer:
If the potential energy change of each cart is the same, then the total mechanical energy change is the same for each cart
Explanation:
Hills look steeper when standing back from the edge so that gaze is nearly parallel to the surface of the hill. When optical slant (the angle between the center of gaze and the surface) is small, surface orientation is pulled toward the direction of gaze
u.
II. Match the following.
Column B
Column A
1. Acceleration - A. A tendency of a body to keep moving.
2. Kinematics - D B.Fastness and direction of a body.
3. Inertia
C.An opposite force.
4. Velocity
D.A study of moving bodies.
5. Reaction -
E. A state of balance of forces on a body and
the body remains either at rest or in uniform
motion.
F. An increase in a body's speed.
G. An increase in a body's velocity.
Answer:
1. F and G.
2. D
3. A and E.
4. B
5. C
Explanation:
1. Acceleration: An increase in a body's velocity. An increase in a body's speed.
In physics, acceleration can be defined as the rate of change of the velocity of an object with respect to time.
This simply means that, acceleration is given by the subtraction of initial velocity from the final velocity all over time.
2. Kinematics: a study of moving bodies i.e physical objects in motion.
Motion can be defined as a change in the location (position) of a physical object or body with respect to a reference point.
This ultimately implies that, motion would occur as a result of a change in location (position) of an object with respect to a reference point or frame of reference i.e where it was standing before the effect of an external force.
3. Inertia: A tendency of a body to keep moving. A state of balance of forces on a body and the body remains either at rest or in uniform motion.
Inertia can be defined as the tendency of an object or a body to continue in its state of motion or remain at rest unless acted upon by an external force.
In physics, Sir Isaac Newton's First Law of Motion is known as Law of Inertia and it states that, an object or a physical body in motion will continue in its state of motion at continuous velocity (the same speed and direction) or, if at rest, will remain at rest unless acted upon by an external force.
4. Velocity: Fastness and direction of a body.
Velocity can be defined as the rate of change in displacement (distance) with time. Velocity is a vector quantity and as such it has both magnitude and direction.
5. Reaction: an opposite force.
Newton's third law of motion states that for every action there is an equal and opposite reaction.
Action-reaction force pairs make it possible for fishes to swim, birds to fly, cars to move, etc.
All students except one are cheating on a test. The one student who is not cheating on the test is exhibiting abnormal behavior. Based on the information provided in the article, explain the conclusion of this scenario. Which definition for abnormal behavior would apply to this scenario? (Site 1)
Answer: See explanation
Explanation:
According to clinical psychology, an abnormal behavior is when an act results in a significant distress and is deviant from the normal practice.
In this case, while the whole class is cheating, one student isn't. This shows that the student is deviating from what every other person is doing. Since the student deviates from the norm, it's an abnormal behavior.
Answer:
The reason he might be exhibiting abnormal behavior is the fact that everyone except him is cheating on a test. He is the odd one out and due to this he might be anxious/nervous. Perhaps he thinks that since he is the only one not cheating that he might get a bad grade cause the teacher will assume he is cheating aswell. Another might be that he does not like being singled out. It's out of the norm and he does not particularly like it.
Explanation:
Take this and alter it to your liking. It got me a 100%!
Infrared technology can be used to do which of the following?
A. Locate tumors in the body
B. Monitor human activity at night
C. Photograph through solid objects
O D. Communicate across long distances
Answer:
human activity at night
Explanation:
just did it
helpppppppppppp.......!
Explanation:
m = 66 kg
a = 2 m/s²
F = .....?
F = m . a= 66 . 2
= 132 N
#CMIIW